Definition of Demipenteract. Meaning of Demipenteract. Synonyms of Demipenteract

- In five-dimensional geometry, a demipenteract or 5-demicube is a semiregular 5-polytope, constructed from a 5-hypercube (penteract) with alternated vertices...
- tetrahedron, and the demitesseract is identical to the regular 16-cell. The demipenteract is considered semiregular for having only regular facets. Higher forms...
- half the vertices of stericated 5-cubes. Steric penteract, runcinated demipenteract Small prismated hemipenteract (siphin) (Jonathan Bowers): (x3o3o *b3o3x...
- 4-faces, of which 270 are four-dimensional 16-cells, and two sets of 27 demipenteract 5-faces. These 72 vertices are the root vectors of the simple Lie group...
- Penteractitriacontiditeron (acronym: nit) (Jonathan Bowers) Rectified 5-demicube/demipenteract The birectified 5-cube may be constructed by birectifying the vertices...
- regular 4-polytope facets. There is only one such figure, called a demipenteract. A regular 5-polytope has all identical regular 4-polytope facets. All...
- rectified 5-cell are included at the beginning for completeness. The demipenteract also exists in the demihypercube family. They are also sometimes named...
- have half the vertices of runcinated 5-cubes. Cantellated 5-demicube/demipenteract Small rhombated hemipenteract (sirhin) (Jonathan Bowers) The Cartesian...
- 6-polytopes, but can be extended backwards to include the 5-demicube (demipenteract) in 5-dimensions, and the 4-simplex (5-cell) in 4-dimensions. Each polytope...
- Tetrahedron (regular) → Tesseract (8-cell) → 16-cell (regular) → Penteract → demipenteract (semiregular) Hexeract → demihexeract (uniform) ... Coxeter also used...